If the radius of the earth is 6.4 x 106m, the escape velocity of a…

If the radius of the earth is 6.4 x 106m, the escape velocity of a satellite from the earth is?
[g = 10 ms-2]
  • A.
    1.13 x 104 ms-1
  • B.
    9.00 x 103 ms-1
  • C.
    8.00 x 103 ms-1
  • D.
    1.27 x 104 ms-1
Correct Answer: Option A
Explanation

V esc = √2Rg. =√2 x 6.4 x 106 x 10 = 1.13 x 104 ms-1

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